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Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
Genetic Engineering[1]
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Genetic Engineering[1]

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Transcript

  • 1. Genetic Engineering
  • 2. What is Genetic Engineering? Genetic Engineering – technology of altering the genes of an organism to produce a desired change.
  • 3. Types of Genetic Engineering
    • 1. Selective Breeding – when animals with desired characteristics are bred to pass on only desired traits.
    • - Ex: dogs, cats, farm animals, crop plants
  • 4.
    • 2. Biotechnology – adding to or causing changes in DNA (genes) to affect changes in an organism.
  • 5. Process of Biotechnology
    • a. DNA is spliced (cut) from cells.
    • - This is done by special enzymes called Restriction Enzymes .
  • 6.
    • The spliced pieces of DNA are separated by the process of Gel Electrophoresis.
    • - The pieces separate based on size . (Remember chromatography)
  • 7.
    • The pieces of DNA are placed on a gel and move towards the positive end .
    • The smaller pieces of DNA reach the end first .
    • A photograph of the DNA is then taken.
  • 8.
    • 3. Recombinant DNA – taking a gene from one organism and putting it into the DNA of another organism.
    • - combining DNA from different sources.
  • 9.
    • Human genes, spliced (cut) by restriction enzymes , are inserted into the DNA of a bacteria .
    • Bacteria asexually reproduce and make lots of human genes , which code for human proteins .
  • 10. Review Picture of Recombinant DNA
  • 11.
    • 4. Clone – an organism or cell that is genetically identical to its parent.
    • - commonly results from asexual reproduction and mitosis in single-celled organisms .
  • 12. Cloning in Multicellular Organisms?
    • 1997 – Ian Wilmut cloned a sheep named “ Dolly ” .
    • Took body cell from a sheep udder.
    • Fused (mixed) it with an egg cell from a female sheep in a test tube.
    • Fused egg cell  embryo.
    • Embryo placed into female sheep ’ s uterus.
  • 13.  
  • 14. Crime Scene DNA
    • GTCGACCGGTGA
    • CAGCTGGCCACT
    • GTCGACC GGTGA
    • CAGCTGG CCACT

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